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Phil
Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 6022
Experience:  Retired HVAC/ Electrical & Boiler contractor. Industrial
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I have an old maple chase 0960 with 4 wires, Red,, Blue,

Customer Question

I have an old maple chase 0960 with 4 wires, Red, Green, Blue, and White, NO Yellow. installing an ecobee3
JA: I'll do all I can to help. How long have you been dealing with this?
Customer: furnace is running but fan is not working
JA: Did you check the furnace's filters?
Customer: it is blocked
JA: Do you plan on doing the work yourself?
Customer: my handyman came and did it and realized no cold air was coming out. so trying to fix it myself cuz it is steaming hot in our house and my baby won't be able to sleep like this
JA: Anything else we should know to help you best?
Customer: how to hook up the 4 wires onto the new ecobee3
Submitted: 2 months ago.
Category: HVAC
Expert:  gotoman for ac replied 2 months ago.

Russ here. If blue was connected to yellow on old thermostat. Use blue to Y. Red to R. Green to G White to W Blue to Y. Russ